protected String doInBackground(String... filename) {
    		String sdcard = Environment.getExternalStorageDirectory().toString();
    		File file = new File(sdcard+"/androrec/");
			//File file2 = new File("/mnt/sdcard/CallRecorderBackup");

			File[] listofFiles = file.listFiles();
			Log.d("No. of files" ,fileArrayToString(listofFiles));
			try{
//........................ this is connection........................
				client.connect(FTP_HOST,21);
	            client.login(FTP_USER, FTP_PASS);


			for (int i = 0; i <=listofFiles.length ; i++) {


					Log.d("Tag 4", "inside of ftp connect");

				Log.d("Tag 1", "inside of for loop");
				//if(purchases != null && !purchases.isEmpty()){
				if (listofFiles == null || listofFiles[i].isFile()) {
					Log.d("Tag 2", "inside of if");
					String files = listofFiles[i].getName();
					Log.d("Tag 3", "inside of files");
					File filetoload = new File(sdcard+"/androrec/"+files);


							//client.connect(FTP_HOST,21);
							Log.d("Tag 4", "inside of ftp connect");

			            Log.d("Tag 5", "inside of for ftp pass");
			            //client.setType(FTPClient.TYPE_BINARY);
			            //client.changeDirectory("/");
			            Log.d("Tag 6", "inside of for dir");

					client.upload(filetoload, new MyTransferListener());
					Log.d("Tag 7", "inside of download");
					//out.write(buf, 0, len);
				//}
				//}






           // client.upload(in, new MyTransferListener());

        }
				else{

				}
				//client.disconnect(true);
				}
			}

				 catch (IllegalStateException | IOException
						| FTPIllegalReplyException | FTPException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (FTPDataTransferException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (FTPAbortedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}


            try {
                client.disconnect(true);
            } catch (Exception e2) {
                e2.printStackTrace();
            }
			return null;
            }